SnO2 nanoparticles were synthetized in three different ways (solvothermal, hydrothermal, sol-gel) and heat-treated under argon at 600 °C to obtain physico-chemical characteristics (texture, structure surface chemistry) determined by X-ray powder diffraction (XRD), infrared spectroscopy (FTIR), 119Sn solid state Nuclear Magnetic Resonance (NMR), Electron Spin (ESR), scanning electron microscopy ...

In this study, alkaline colloidal silica was prepared by titration of an alkaline solution such as sodium silicate with silicic acid in constant range of pH  .This constant range of pH was achieved by using concentrated soduim silicate solutions as pH adjusting solutions during titration.The sodium silicate solutions  having a variety of...

This review focuses on the opportunities provided by sol–gel chemistry for production of silica/epoxy nanocomposites, with significant representative examples “extra situ” approach and an updated description “in strategy. The strategy enables creation nanocomposites containing highly engineered nanoparticles. is a very promising synthesis route that allows us to produce, in much easier eco−frie...

This manuscript is focused on the relationship between sol-gel synthesis processes and development of new active phases with fitted morphology, porosity surface chemistry. The influence above parameters catalytic performance prepared materials for aromatization n-hexane to benzene also evaluated. Different series catalysts were prepared, either using noble metals (i.e., Pt) or metal oxides Mo, ...

The work described below was carried out to understand how control the morphology of nanostructured titania calcined from electrospun nanofibers. This is first report hollow rutile nanofibers synthesized with short calcination time. Titanium isopropoxide incorporated into as precursor. electrospinning technique used fabricate ceramic/polymer hybrid were then produce different morphologies (holl...